Option 1:Pay your Maryland income taxes online at Maryland taxes.
Option 2: If you owe MD Taxes, file either your Maryland tax return or MD tax extension - even if you can't afford to pay all or some of your MD taxes due. Alternatively, you can pay your MD taxes due online by the April deadline. In that case, you don't have to file an extension by the April deadline since your taxes are paid in full. In case you filed an extension by April, eFile your MD return by the October e-file deadline as you can no longer e-file your returns and would have to submit a paper return past this date.
Note: Failure to pay taxes due or electronically file a tax return by the October deadline will result in late filing penalties.
Option 3: Complete Form PV, include a check or money order, and mail both to the address provided on Form PV.
Important: Even with an extension, you must e-file or mail your MD tax return by the October deadline.